Sound is a form of energy is incorrect
Sound is caused by the movement or vibration of matter
Answer: The percent of sulfate is present in the coal samples is 0.999%.
Explanation:
Given: Percentage of sulfur present = 3%
In
, the percentage by weight of Sulfur is calculated as follows.

This means that the amount of only sulfur present in
in the sample is as follows.

Thus, we can conclude that percent of sulfate is present in the coal samples is 0.999%.
Electron - In an atom, the central part which is composed of neutrons and protons including quarks is called the nucleus. Whereas the electron is the particle with negative elementary electric charge can be found inside the atom surrounding the nucleus.
Answer:
a. molecules that gain or lose an atom to develop a bonding charge
Explanation: